three years ago, mckinsey showed by 2020, the u.s. could reduce non-transport energy consumption by 1/4. it would pay back more than $1 trillion in savings. the report found the nation could save money by cutting energy consumption by 30% and produce the same amount of goods and services. we have calculated hundreds of measures currently available could reduce energy consumption by 1/2 by 2013. the cost savings would be twice the dollar amount investment. these reports suggest to realize the potential, public policy is necessary. a leading example of success is the commercial building partnership sponsored by the department of energy. its partners with owners and operators on new buildings and retrofits resulting in compelling results. one project cut energy consumption by 35% at the target store. they are now busy replicating that enterprise-wide. at the support facility where i have my office, there is another example of how much can be accomplished when efficiency is a fundamental attribute of the building design. net 0the world's